this is a fight between all the current heroes and villains of earth. just like what happened in dead man logan
scenario:red skull made a meeting with all the villains of the earth. they have at least 1 week of prep. but on the 4th day, currently not evil kid loki(someone said that he is a teenager now?) saw what the villains are up to and teleports to reed about the villains plot, in which the heroes gather and has only 3 days of prep left, but red skull knows that loki gave info to the heroes.
the villains has attacks strategy is divide and conquer, heroes are at their bases
Scarlet Witch goes crazy again and creates a reality with no supervillains. The she undoes what she did but depowers 95% of the supervillain community.
HOM Wanda was technically a villain though... And what about those who flip flop like Mags and Hulk and The White Queen... And what about the Uncanny X-men what side are they on.
So what, the current heroes/villains on Earth right now?
So like... Thanos and his dudes, Kang/Doom/Annihilus (possibly alt Annihilus), and no Franklin Richards, or Apocalypse Twins?
Well, Franklin could solo, but he's not on Earth. If all the villains team up... yeah, could be messy. Maybe Captain Universe could solo, but I still question the validity of her being "Eternity". I'd say Legion could do some damage, but he's not really a villain or a hero.
They aren't villains. And Galactus isn't even in the same universe.